Reclining article of furniture



Nov. 27, 1951 LORENZ 2,576,466

RECLINING ARTICLE OF FURNITURE Filed Jan. 22, 1946 4 Sheets-Sheet l INVENTOR ANTON LORENZ BYW Hls ATTORNEY Nov. 27, 1951 A. LORENZ 2,576,466

RECLINING ARTICLE OF FURNITURE Filed Jan. 22, 1946 4 Sheets-Sheet 2 INVENTOR ANTON LORENZ s ATTORNEY NOV. 27, 195] LORENZ RECLINING ARTICLE OF FURNITURE 4 Sheets-Sheet 3 Filed Jan. 22, 1946 FIG.|O

FIG.

INVENTOR ANTON LORENZ IS ATTORNEY Nov. 27, 1951 A. LORENZ RECLINING ARTICLE OF FURNITURE 4 Sheets-Sheet 4 Filed Jan. 22, 1946 INVENTOR ANTON LORENZ HIS ATTORNEY Patented Nov. 27, 1951 UNITED TATES This invention; relates toan article of fur-niture, an m re par qula lvit a cl n a t cl of furniture, wherein thehack-rest and seatiform movab m .er o -..-.p ye n. ,lill rs ste swingahly mounted on a support and wherein the movements oi the; members of said polygonal link-system are positively gQnt1f0 11ed -by a guidins 1 nk p v te t t e sup an op at ves connected with a, member of thepolygonallinksystem.

: An bject. of the. presen i v nt on is ro i a convenient g controlling .mechanism for a legrest:swingahlyemounted-on; the seat; of a rec-lining article of furniture of above describedtytpe, 'byg means -,,of which-the; angle between the legrest :and; the, seat is,=automat a a r E9 pendence on the movements of the guiding link when thegmovable members of the reclining article. ,of' furniture including the back-rest and theseat arebrought from a certain position such as; the sitting. p sition-in o an th pq it ongshq as 'a;rec1ined,,posi ti on. or vice versa.

.-A=urther .object, of the present invention is to equip a reclining article of iurniture .of'. above described type with a; controlling me chan is n for the 'le e lest... which may, oause a movement pflthe leg-rest relative. to theseat, when theposition .of the wnolyeon l kys em Y a tere 1 w ich. however, do n t .fqhn os t -c nnect on b tweenztheile e s an the. 01. 3.. 11 mechanism and permit an in depen olent movement 1 of the leet relat v tQthe .s a -wll. ztha;msmbers of; the polygonal li nlg-system are, he1d ,in. a .c rt m-msiti ir lat q. a h 9 ':'Anot her;; object Dig- 15116 present invention is to improve on reclining; articles of furniturejof above described; type as now ordinarily. made.

With-the above and other objects of the invention in view, the inventionconsists in the, novel construction, arrangement and. combination of .various;devices, e1ements and parts as set fQlIth in, the: :claims hereof, ,certain embodiments of the same beingudescribed in the specification and .being illustrated in the, accompanying drawings forming part of this. specification,- wherein:

-Fig. 1'is a 'side elevational -view.-of.-a reclining lounget; according to "the invention, a portionwof the support being-=brokenaway,

Fig'." 2 is a fragmentary perspective viewof r a detail of the lounget shown in Fig. 1,

'3;is a sectional'view of the locking device jof'jthe lounget shown in- "Fig.1, taken on-line 135-3 of Big. 1,

- %E e;%- is, w de e evatiqn -v e b g a if re emb dimsmlf t' a c accorglinglto thef v e'rtih le "reclining 2101111836 l'Fie. 6 ;.is ,a jsiqe elevational view jot a reclining arm chair, accordingf t the invention; a portion b a i ewe l 9 t P 2 i mlsenia a ,F ig 'I is aside elevational-viewofj an therjemll l invention; aportion of thefsi'de wan; of the} support? f in broke awa j. 83s. a .view' 01a 'gletail'otlthe jchairfshown m taks aal n a. e-Mm 1 51 Qt y YE o th submitthe chair shown in ig. 7,. the. .oontrollingfnnlt of said chair being shown mounted j' in said Sup s F -11 .451- ag m m ntarv S d evatiqn fihee a e r memb rf h ldi t tro n un o th a msnown e i e-P 5 ".6

G-F 33 is nerspe iv view: a 'd fiersnt' m- .hoqirnent 5 f 1 a controlling .-unit which; may "be us mt e in .13,, nil

Figi 1 1 id i t na Vi w m p h rt m- .b diment i e la -cha r.aq r jto 1110f I a side wall jof j- 't'he 13?? a y iad qet idsupport -2 2; coma H I onnectedwvith'ea'oh il nd. 3 151mr z m pef 1 r und bi 0f. wheels *32}. (gnlyyon heing hown) :Journalld .vinvsui e ebe r s. ith eun or .Th gihack n the rgarportio i ea fwearacqa y p d, w 11m L fThe back: .J t";hestii w v tensionjfill subs nt "11y in-the"centrjoffthe 3 hereinafter called a lower connecting link, is pivoted to said extension 46 of the back-rest 34 at 44. The other end of said lower connecting link 42 is pivoted at 46 to the adjacent end of another connecting link 48, hereinafter called the front connecting link. The upper end of said front connecting link 48 is pivoted to the front portion of the seat 36 at 56. The pair of connecting links 42, 48, pivotally connected with each other at 46 form a link mechanism. Said downward extension 46, said link mechanism 42, 48 and said seat 36 form the movable members of a constrained kinematic polygonal link-system in the shape of a quadrilateral link-system which is swingably mounted on the support 22 at 38 for movement about a single axis. The movements of the movable members 46, 42, 48, 36 of said quadrilateral link-system are controlled by a guiding link 52, the lower end of which is connectedwith the pivotal connection 46 between the connecting links 42 and 48. The upper end of said guiding link 52 is rigidly connected with a transverse rod 54 journalled in suitable bearings of the support 22 (see Figs. 1 and 2). One end of a telescopic controlling element or controlling bar 56 is also rigidly connected with said transverse rod 54, so that said controlling bar 56 participates in the movements of the guiding link 52. The element 58 slidably arranged in the hollow element 66 of the telescopic controlling bar 56 may be held in any desired position relative to said hollow element 66 by means of a set screw 62. A roller 64 journalled in said element 58 of the telescopic conbody against the back-rest 34, whereby the latter is swung about itspivot 38 into a reclined position, for example the position 34, the seat 36 controlled by the movements of the guiding link 52 is brought into the reclined position 36', and the leg-rest 66 is swung by means of the controlling bar 56 about its pivot 56 into the reclined position 66 in dependence on the movements of the guiding link 52.

The sitting position of the movable members of the lounget shown in full lines is limited by the transverse rod 36 of the support 22 forming a stop on which the seat 36 comes to a rest. The extreme reclined position of the movable members of the lounget shown in dash and dot lines is limited by a stop 68 mounted on the support 22 for cooperation with the back-rest.

The movable members of the lounget may be held in said extreme reclined position or in any other intermediate reclined position by means of a locking device generally indicated by 76. As best shown in Figs. 1 and 3, said locking device 16 comprises a locking rod [2 swingably mounted on the extension 46 of the back-rest 34 at 14. The free end of said locking rod '12 is in slidable engagement with a clamping sleeve 16 havin bores 18 for engagement with a bolt 86. Said bolt 86 having a head 82 and passing through apertures 84, 86 of the side frame 24 has a threaded end for engagement with the threaded bore of a locking knob 88. portion 96 of the bolt 86 engaged with the corresponding square aperture 84 of the tubular side frame 24 prevents the bolt 86 from rotation when the knob 88 is turned. When the locking knob A square 88 is loosened, the locking rod 12 may freely able members of the lounget may be readily moved from one position into another one. When the locking knob 88 is tightened, the clamping sleeve 16 is tightly pressed on the locking rod whereby the latter and the movable members of the lounget are held in their position. Of course, any other suitable locking device may be used instead of the locking device 16 shown in the drawings.

As mentioned above, the controlling bar 56 is of the telescopic type, so that its effective length may be varied and adjusted by loosening the set screw 62 displacing the member 58 relative to the hollow member 66, and holding the member 58 in the displaced position by tightening again the set screw 62. When the movable members of the quadrilateral link-system 36, 46, 42, 48 are held in a certain position by means of the stop 36 or by means of the locking device 'E6, the angle between the leg-rest 66 and the seat 36 may be altered by means of such an adjustment of the effective length of the telescopic controlling bar 56.

According to the embodiment of a lounge shown in Fig. 4, the back-rest 234 is pivoted to the support 222 at 238. The rear end of the seat 236 is pivoted to said support 222 at 239 at a point spaced from the pivotal connection'238 between the back-rest 234 and the support 222. The back-rest 236 has an offset downward extension 246 pivoted to the rear end of the lower connecting link 242 at 244. The other end of said lower connecting link 242 is pivotally connected with one end of an intermediate connecting link 292 at 294. The other end of said intermediate connecting link 292 is pivoted at 296 to one 'end of the front connecting link 248, the other end of which is pivoted to the seat 236 at256. Thus, the downward extension 246, thelink-mechanism 242, 292, 248 and the seat 236 form the movable members and the portion of the support 222 between the pivots 238 and 239 forms the stationary member of a constrained kinematic polygonal link-system in the shape of a hexagonal linksystem. The movements of the movable members of said hexagonal link-system are controlled by a guiding link 252, the upper end of which is pivoted to the support 222 at 254, and the lower end of which is rigidly connected with the intermediate connecting link 292. In the embodiment shown in Fig. 4, said guiding link 252 is integral with the intermediate connecting link 282, but of course the guiding link and the intermediate connecting link could be made of two separate pieces rigidly connected with each other by suitable means, for example screws.

The movements of the leg-rest 266 swingably mounted on the seat 236 at 256 are controlled by the following mechanism in dependence on the movements of the guiding link 252. One end of the controlling bar 256 is rigidly connected with an intermediate point of the guiding link 252. According to Fig. 4, the controlling bar 256 is integral with the guiding link 252, but of course, the controlling bar and the guiding link could be made of two separate members rigidly connected with each other by suitable means, for example screws. The other end of said controlling bar 256 is provided with a series of holes 298. A pivot 266 pivotally connecting one end of a telescopic controlling link 26l with said controlling bar 256 may be selectively engaged with one hole of said series of holes 298 whereby the effective length of the controlling bar 256 may be adjusted. The leg-rest 266 is provided with'a series of lugs'263,

eachoi which has abore205. -A pivot-201- may be" selectively engaged with" a "bore *205-of said series of lugs- 2 03 for a "pivotal connection of' the other "end of the controlling-link -2ll l with the legre'st"'266. The selective-engagement ofthe pivot 201' with where ofone of said series of lugs 203 permits an adjustment'of the pivotal connection between the controlling-link 2l'lland the leg-rest 266 relative to the leg-rest. --Furthermore;-theeffective length of the controlling link 20l may-be varied and adjustedby'loosening the set screw 209, displacing the slidable mei'nber 2| l relativeto the hollow "member 1 2| 3 of the -telescopic controlling'linkdfl I andholding theslidable' member -2 l l in the displaced-position by tightening the setscrew-209.

' When the back rest 234-is swungabout itspivot 2 38* into a reclined position, for example the extreme reclined position-=234;-the seat 236 is swung about its pivot 239-intotheextreme reclined position 236' by meansofthe-eontrolof the guiding link ---252. Furthermore, the leg-restis' brought into the position 266- by meansof-the controlling mechanism 256, 20!.

' The-movable-membersof thelounget maybe I heldin any desired position bymeans of the locking-device generally indicated by 210. Asbest shown in Figs. land 5, said locking device 210 comprises a locking rod: 212- swingably-mounted on the seat 236-at 215. Said locking rod 212 is slidablyengaged-with a clamping sleeve 216 having'bores 273-for engagement with a bolt'.28ll. Said bolt 28!) has a square .portion 290 inserted into acorresponding square aperture of. the. frame of the support 222. A collar 2|? isplaced on the bolt 280'between the surface of .the, support 222 and theclamping sleeve :216. The head 282 of the bolt 28E] restsagainsta surfaceof the frame of the support 222, and a locking knob 288 is screwed on the threaded end of the bolt 280. When the adjusting-knob 288 is loosened, the locking rod 212 may freely slide-in the clamping sleeve 216, so that the movable members of the loungetmaybe freely moved from one position into another one. When the locking knob 288-is tightened, the clamping sleeve 216 is tightly pressed against the locking rod'2l2,- whereby the latter and the-seat 236 and-those movable members of the lounget which are positivelyconnected with the seat; are held in their position.

The locking rod 212 has a series of bores ZlQ. A pin 22] passing through a hole 013 astopcollar v288 adjustably arrangedon the locking rod 272 may be selectively engaged with one hole of the series of holes 219, wherebysaid stop-collar 258 is held in a predetermined position on the looking rod 272. When the seat 236 is lifted,.the looking rod 272 slides inthe clam-ping sleeve 2% until the stop collar 268 abuts-against said clamping sleeve, whereby the extreme reclined position 236 of the seat andthe extreme reclined position of the other movable members of the lounget positively connected with the seatis limited. 1 he will be readily understood, said extreme reclined position of the various movablemernbers of the lounget maybe varied andadjusted by a correasponding adjustment of theposition of the stop collar 268 on the lockingrod 212. The-substantially horizontalsitting-positionof theseatZ 35 1s limited by the ;upper edge of the support 2'22 on which the seat comes to a rest.

At least one pivotal connection of ithe'linkmechanism 242, 292,248, ior example thepivotal connection 244 is dis'engage'able; so'that the-back- 2 3 6- about its pivot --238;'--for =example-into-the position'-234' wherein it abuts against theupper edge of the-support. Thus-the loungetshown in 'Fig. emery-be converted into a oou'ch-l-ikefurniture, when the back-rest is held by the support 222- in said-substantially horizontal position -234' "-substantially in alignment with the seat 236 .heldzin its s'itting position by the support 222. :Whenuthe telescopic controlling- .link' 20 l xis of theaadjusted efiectivelengthras: shown in full lines-inrEigssl, and when its ends are pivotediatk2lmand20 with the' controlling bar 2 56 and..the leg;-rest:i -2B6 respectively-as: shown in full lines,.the:leg'-rest;2.66 is likewiseheldin asubstantially horizontal-position in alignment with the-seat 236.

:When-the seati236 ..is.held ina certain position either by ithez lockingdevice: 210 ;or, by. the upper edgeiof the supportz222 the. leg-rest: 2661:may.::be brought .into :a different position relativeietonthe seat 236. by varying-:the eiiective length .Ofrrthe telescopic link 22 l. and/or by varying the; effective length ofthe controlling bar'256 and/on-by connecting thexcontrollinglink 28! with: a different lug 223. If,:for :example, theceffective-length of the: controlling link; 29! and .itswpivotal. connectiOILZUTi-With the center 1ug12-B3 remains-unchanged, ,if,- however, the .pivot .26!) passing through a bore ofthe controllinglink-20hissinserted'into the hole 298a.of the controlling bar the leg-rest is brought: into the -position 265%, Now, when allpivotal connectionseofsthe link mechanism 222, 292, vv 248, are inactiveen- .gagement, when for example the pivotalconnection- 242 between the lowerconnecting link242 endthe extension 240 of the. back-rest 2t4nis reinstated, the leg-rest --.will "reach the position 25th, when the back-rest andtheseat are swung into the extreme'reclined position 23421236.

-According to'the embodiment of areclining arm-chair shownin Fig. 6, the back-rest 334and the .seat- 336 are coaxially pivoted ..to .the .connectediside frames of the support'I.'322..-ati .338. The rear end of thelink mechanism comprising the lower connecting link 342 pivotallyconnected at 346- with the front connectinglink'.348lis. pivotally connected. with the downward extension 246.7% the-back-1'est'- 332M344. "The front end .ofsaid link. mechanismv 342,134Bis pivoted to said extension. 323"of.the"leg rest -3t,6;'--and the other end of said controlling linkEfil is pivoted atfiilfl to a controlling bar 355 integral with the ..guidinglink 352.

"When theback-rest 334 is swung fromithe'sitting position shownin full lines into the extreme reclined position shown in .dashand dot lines, the -seat--336 -and the leg-rest .365 are ..brought from the position shown in full lines into the position shown in dash and dot lines bythe .controLOf/the guiding link-352.

The sitting position of thenmovable members :zofithe chair is limited by thev crossibars 'ifi of-Mthe asupport. 322 cooperating with :thedownwardsex- -t'ensi0n 340 :ofrithe'shack-rest 5334;;andxtheextreme rest '234 may-be swung independently of 'the se'at 5 -reclinedposition ofithetmovablennembersazof the chair is limited by the cross bar 368 of the support 322 cooperating with the back-rest 334.

The movable members of the chair may be held in any desired position by means of the locking device 310.

According to the embodiment of a reclining chair shown in Fig. 7, the back-rest 434 is pivoted to the casing-like support 422 at 438. The rear end of the seat 436 is swingably mounted on said support 422 at 439 at a point spaced from the pivotal connection 438 between the back-rest 434 and the support 422. The back-rest 434 has a downward extension 446. On each side of the chair, the rear end of a lower connecting link 442 is pivoted to said downward extension 440 at 444. Each lower connecting link 442 is pivotally connected at 446 with one end of a front connecting link 448, the other end of which is pivoted to the seat 436 at 450. On each side of the chair, the lower end of a guiding link 452 is pivoted to the lower connecting link 442 at 445. As best shown in Figs. 7, 9, and 10, each guiding link 452 integral with a controlling bar 456 is rigidly connected with a transverse rod 454 rotatably arranged in recesses 425 of the side walls 424, 426 of the support 422. Said recesses 425 are open at the top. Thus, the controlling unit 453 formed by the transverse rod 454 and the two members 452, 456 rigidly connected with each other may be readily inserted into the recesses 425 of the support 422 from above. Safety blocks 42! attached to the side walls of the support 422 by screws may hold said unit 453 in its position when inserted into said recesses 425. Collars 429 arranged on the rod 454 between the members 452, 456 and the side walls of the support 422 prevent an axial displacement of the unit 453. Thus, the guiding link 452 is again swingably mounted on the support 422 and may control the movements of the movable members of the quinquelateral link-system formed by the movable members 44!), 442, 446, 436 and the stationary member of the portion of the support 422 between the pivots 438 and 439. An adjusting element or bar 43! (see Figs. 7 and 8) is swingably mounted at 433 on each controlling bar 456. A stop 435 secured to the controlling bar 456 by screws is arranged for engagement with the swingable adjusting bar 43!, so as to hold same in alignment with the controlling bar 456 as shown in full lines in Fig. 7. One end of a controlling link 46! is pivoted to said swingable adjusting bar 43! at 43?, the other end of said controlling link 46! is pivoted at 40'! to the legrest 466 swingably mounted on the seat 436 at 45!; Each controlling link 40! and each adjusting bar 43! may pass through a slot 44! in the front wall 443 of the support 422.

The sitting position of the movable members of the chair shown in full lines in Fig. '7 is limited by the upper edge of the support 422 on which theseat 436 comes to a rest.

When the back-rest 434 is swung about its pivot 436, the back-rest, seat, and leg-rest may be brought into the extreme reclined position 434, 436', 466, limited by an abutment of the back-rest against the stop 468 mounted on the support 422.

The movable members of the chair may be held in any desired position by means of the locking device 416.

As mentioned above, the adjusting bar 43! is swingable about the pivot 433. If the back-rest and seat are held in a predetermined position, tor example the sitting position shown in full lines in Fig. 7, by means of the locking device 410, the leg-rest 466 may be swung by hand about its pivot 45! into the position 4660., wherein the controlling link and the adjusting bar are in the positions 43m and 40m in alignment with each other. Now, when a slight pressure is exerted on the leg-rest, for example by the legs of the occupant resting in the chair, the controlling link and the adjusting bar are moved slightly beyond said straight line, until a stop 441 secured to the adjusting bar 43! by screws abuts against the controlling link, whereby said elements are locked and held in a predetermined position relative to each other.

Fig. 11 illustrates a different embodiment of a controlling unit 4531), which may be substituted for the controlling unit 453 shown in Fig. 8. Said controlling unit 45% is made of an integral piece of material in such a shape, that two guiding links 4521) and a single controlling bar 4565 are formed. Of course, if the controlling unit 4531) is used, only a single controlling link is arranged for connecting the single controlling bar 45Gb with the leg-rest.

Fig. 12 illustrates a. further embodiment of a controlling unit 4530 which may be substituted for the controlling unit 453 shown in Fig. 9. According to Fig. 12, the controlling unit 4530 is composed of a plurality of members rigidly connected with each other by rivets 4490 or the like. The members of the controlling unit 4530 are shaped so as to form two guiding links 4520 and a single controlling bar 4560.

According to the embodiment of a reclining wheel chair shown in Fig. 13, the support 522 is provided with wheels 532 of any conventional construction. The side frames of the support 522 are connected with each other by transverse rods 528.

The back-rest 534 is pivoted to the support 522 at 538. The seat 536 is pivoted to said support 522 at 539 spaced from the pivot 538. The rear end of a lower connecting link 542 arranged on each side of the wheel chair is pivoted to the downward extension 540 of the back-rest at 544. The other end of said lower connecting link 542 is pivoted at 546 with the lower end of the guiding link 552 and one end of the front connecting link 548. The upper end of said front connecting link 548 is pivoted at 550 to the seat 536.

The leg-rest 566 swingably mounted on the seat 536 at 55! has an upward extension 523. A controlling bar 556 integral with the guiding link 552 swingably mounted on the support 522 at 554 has a controlling surface 555 in the shape of a cam, which is in loose contact with said extension 523 of the leg-rest 566. The extension 523 of the leg-rest may be held against said controlling cam 555 by means of a spring (not shown). When the controlling cam 555 of the controlling bar 556 is in engagement with said extension 523 of the leg-rest 566, the movements of the leg-rest are controlled in dependence on the movements of the guiding link 552. Thus, if the back-rest 534 is swung about its pivot 538 into the reclined position 534', the seat 536 and the leg-rest 566 controlled by said guiding link 552 are brought into the position 536' and 566.

The sitting position of the movable members of the chair is limited by the stop 536 mounted on the support 522, and the extreme reclined position of the movable members or the chair is limited by the adjustable stop collar 568 mounted on the locking rod 512 of the locking tive to the seat 536.

devicezgenerally:indicated:by T5105," Said locking device:--5'!0owith';the': adjustable stopi collar $568 is;ofz.theisame:generallorganizatienias the locking device 21c described above in", connection withiFigs. Aaand 5Z1 Aszbest shown'zin- Fig. 16, the: locking; rodt 510 is: swingably: mounted on the: seat 2535i=-at :5 t5, and :the bolt 58!! rcarrying the clamping sleeve 5'lBiar-1dthe-lockingknob 588-is -mounted-on:a-bracket 55? attached to a side'frame of :theisupport 522.:

Asgmentioned above, the controlling earn 555 is rin loose contact with the extension 523101 thexleg-rest' 566," so that theqleggrest 55% with its extension 523*,may; be-disengaged from said controllingjcam 555, when the :seatfiflt is-v held bygthe locking :devicen5l "in1;a r certain position: For example, theuextension Z3 of the leg rest 565 may be grasped by hand, and-the :leg-rest may 'be swung into theposition 555a, while the seat'538 remains in the sittingposition shown in full lines. A holding -clevice= generally indi-. cated by 7 559 and. mounted .on' the' seat, 5352mm be used forholding the legerest' 5551ina certain position; forexample said position 555a rela As best shown in Figs. l4:-,and- 15, said holding device 555-com'prisesa rod -56lvslidably engaged-with a clamping sleeve 55 3- havingbores 565 for receiving a-- bolt 55? mounted: on alug-569 attached to theseat A square :portion 511 of the-b01555? having ,a head 5'I3is engaged-with acorresponding squareaperture :of the-lug'559, sorthat the'bolt 567 is prevented-:from rotation-when a lockingknob 5T5 screwedv on the-threaded; end -of-:the--bolt '55! is turned. Assuming the-rod 55iis :in the-position shown. in 'full' lines in .Fig; 14,: and the leg-:rest has been swungby handfrom theposition shown in. full lines-into the position 555a. In order tohold saidleg-rest-in said position556a, the locking knob 515 of the hold-ingdevice 559 is loosened;whereupon the 'rod' .55! may-be .axially displaced in the clampingws1eeves-555.until it abuts against saidleg rest invthewpositicn. 555a as shown in dash. and ,dotllines Now; theelock ing knob 515 is tightened, whereby the clamping sleeve=-563is tightly pressed on the rod 55! so as to hold same and the leg-rest in the dash and dot line position When; after a loosening of the locking device 510themovablemembers of the chair are brought into .aireclined position, the leg-rest will remain in said position 566a relative to the seat 535 until the controlling cam 555 of the controlling barr555 abuts against the extension 523 of the leg;-rest:556. Ifpafter such anabutment, the movement of the rmovable m'emheisof the,wheelwchair is continued, the 'aposition of the leg-rest 566 xrelative :to the seat 536 .isnaltered bythe controlling-cam' 555 in dependenceonithe,movements of the guiding link 552.

According to the embodiment of a reclining arm-chair shown-in Fig; l'T'the back=rest 534 and the seat 635 are coaxially pivoted to the support 522 at 538. The downward extension Mil of the back-rest 634 is pivoted at 644 to the rear end of the lower connecting link M2. The other end of said lower connecting link is pivoted at 694 to an intermediate connecting link 652, which, in turn, is pivoted at 596 to one end of the front connecting link M5. The upper end of said front connecting link 648 is pivoted to the seat 535 at 550. A guiding link 652 integral with the intermediate connecting link 692 is swingably mounted on the support at 554. A bent controlling bar 656 integral with 10 the guiding link'552 carries a icontrolling surface in: the :shape of a-roller 611 forloose contact with the'leg -rest 666- swingably mountedaon the seat 635:at 550. The leg-rest-fififi-and the controlling bar 656- may pass through a, slot 641 *inathe -frontw-all :of the-support -622. The movabler downward extension 645, the; movable links-,MZ, 692,: fi ms-and {the-.- movable' seat 636 form-the -m'ovable members of a, constrained kinematic polygonal; link-system. in the shape of 1a, quinquelaterallink-system swingably mountedonathe support atv 638;.

W-hemthe leg+rest 666 in engagement with the controlling; roller 611' and the; back-rest 5 34 isaswung abouteits pivot .63 8 intoqthe extreme reclined, position 534' the seatand theleg-rest arecbronght intoethaposi-tion 636 666':

The; movable members -oftheechairs may be held: inf-any desired iposition'by means of the locking device-filo of: .the Y type-"described above in; connection 'withsFigs, 4- and 5.

The. sitting osition of the movablermembers of, the chair. is: limited-by a: stop 630 mounted onthe-support 62-2 for cooperation withthedown- Ward extension 5400f the-back-rest 634; and the extreme reclined .-.position is limited; by the stop co11ar;=563:;adjustablymounted on-=the-locking rod :512 1 of :the locking devices-5101 Thei-leg rest -566-may be1 disengaged ,from the roller- 51! :of the controlling: bar. 656-, so that; if desired; the leg-rest ,may-'- be brought into a difierent position: relative/to the seat. 636; for example into the position 656w. The-leg-rest maybe held in said positioncBGBw-bymeans of a holding device'659 mounted 'on the seat -636.- The holding-device 559 is of the-sameconstruction as the hold-ingpdevioe shown in Figs 14 and"15.

It is understood, that: certain parts; elements, or mechanisms shown in a certain figure maybe substituted for-1 corresponding parts, elements, or mechanisms of the embodiments shown in other figures of the drawings.

I have 'describedvpreferred embodiments of-my invention; but: it is understood that" this? dis- CIOSUIGfiSi fOI. thexpurpose of illustration; and that various-:omissions-cn changes-inrshapey pro! portion, and: arrangementbf parts; ass-well as the substitution biz-equivalent elements "for those, herein shown" and described; maybe made without departing .from-wther spirit and: scope of"th'e invention as: set forth 3 in: the appended rclaims.

What I claim is:

1.1 An'article of repose for supporting;:.the body of/aperson, comprising in combination: azisup' port, av constrained I linkage; having stationary link-meansand'a plurality of movable links, "said stationary: link-means being included said support, said" movable. links including a r seatmember; a: downward extension of 'a back-rest member; a guiding link and a chain of connect ing links including: a-= lower- "connecting link; at one end of thechain and 'afront connecting link at theother end of thechain; at leastoneof said connecting links beingarranged below "the plane of the seat-member, the upper end of said guiding link being pivoted to said support, the lower end of said guiding link being connected with at least one of said connecting links, said lower connecting link being pivoted to the downward extension of the back-rest-member, said front connecting link being pivoted to the front portion of said seat-member, means pivotally connecting at least one of said back-restand seat-members with said support, a leg-rest swingably mounted on the front portion of said seatmember, acontrplling member fiizedly' connected 'to' said guiding link, and means, interposed belinks including a'lower connecting link at one endpfjthelchain and a front connecting link at "thpthe'r'end of the chain, at least one of said connecting links being arranged below the plane citric seat-member, the upper end of said guiding linkbeing' pivoted to said support, the lower end of said guidin link being connected with at least one of said connecting links, said lower connecting link being pivoted to the downward extension of the back-rest-member, said front connecting link being pivoted to the front portion oi said seat-member, means pivotally connecting at least one of saidback-restand seatmembers with said support, a leg-rest swingably mounted on the front portion of said seat-memberfacontrolling member fixedly connected to saidguiding link, and a controlling link pivoted at its ear end to said controlling member and at its front end tosaid leg-rest. 3. In an article of repose as claimed in claim 2 said controlling link being of adjustable length, and means 'for maintaining a predetermined adjust nent in the length of said controlling link. 4. In an article'of repose as claimed in claim 1, first holding means arranged on said article for cooperation with the seat-member so as to hold same in a substantially horizontal sitting position, at least one connection of said chain of connecting links being disengageable so as to permit a swinging of the back-rest-member into asubstantially horizontal position independently of the seat-member, and second holding means arranged on said article for cooperating with the back rest member so as to'hold same in said substantially horizontal position. 5. In an article of repose as claimed in claim 1, first holding means arranged on said article for cooperation with thseat-member so as to hold same in a substantially horizontal sitting position, atleast one connection of said chain of connecting links being disengageable so as to permit a'swinging of the backrest-member into a substantially horizontal position independently of the seat-member, second holding means arranged on said article for cooperation with the backrest-'member so as to hold same in said substantially horizontal position, said controlling link being of adjustable length, and means for maintaining a predetermined adjustment in the length of said controlling link so as to hold said leg-rest in a substantially horizontal position.

6. In an article of repose as claimed in claim 2, said controlling member extending upwardly beyond the pivotal connection between the guiding link and the support, said leg-rest having an extension projecting upwardly beyond its pivotal connection with the seat-member, and the front end of said controlling link being pivoted to said extension of the leg-rest.

7. An article of repose for supporting the body of a person, comprising in combination: a support, a constrained linkage having stationary link-means and a plurality of movable links, said stationary link-means being includedin said support, said movable links including a seat-member, a downward extension of a back-rest-member, a guiding link and a chain of connecting links including a lower connecting link at one end of the chain and a front connecting link at the other end of the chain, at least one of said connecting links being arranged below the plane of the seat-member, the upper end of said guiding link being pivoted to said support, the lower end of said guiding link being connected with at least one of said connecting links, said lower connecting link bein pivoted to the downward extension of the back-rest-member, said front connecting link being pivoted to the front portion of said seat-member, means'pivotally connecting at least one of said back-restand seatmembers with said support, a leg-rest swingably mounted on the front portion of the seat-member, a controlling member fixedly connected to said guiding link, an adjusting bar swingably mounted on said controlling member, a controlling link pivoted at its rear end to said adjusting bar and at its front end to said leg-rest, and means associated with said controlling member and said adjusting bar for holding the latter in a predetermined position relative to said controlling member.

8. In an article of repose as claimed in claim '7, means associated with said adjusting bar and said controlling link for holding said adjusting bar in a predetermined position relative to said controlling link.

ANTON LORENZ.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Germany June 9, 1887 

